參數(shù)資料
型號： LX8554-33CP
廠商： MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： 5A EXTREMELY LOW DROPOUT POSITIVE REGULATORS
中文描述： 3.3 V FIXED POSITIVE LDO REGULATOR, 1 V DROPOUT, PSFM3
封裝： PLASTIC, TO-220, 3 PIN
文件頁數(shù)： 3/7頁
文件大?。?/td> 198K
代理商： LX8554-33CP
5A E
XTREMELY
L
OW
D
ROPOUT
P
OSITIVE
R
EGULATORS
LX8554-xx
P R O D U C T D A T A B O O K 1 9 9 6 / 1 9 9 7
3
Copyright 1997
Rev. 1.1 1/97
P
R O D U C T I O N
D
A T A
S
H E E T
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, these specifications apply over the operating ambient temperatures for the LX8554-xxC with 0°C
≤
T
≤
125°C; V
- V
OUT
= 3V;
I
OUT
= 5A. Low duty cycle pulse testing techniques are used which maintains junction and case temperatures equal to the ambient temperature.)
LX8554-00
(Adjustable)
Parameter
Symbol
Test Conditions
Units
LX8554-00
Typ.
1.250
1.250
0.035
0.1
0.01
83
Min.
1.238
1.225
Max.
1.262
1.275
0.2
0.5
0.02
Reference Voltage
V
REF
I
OUT
= 10mA, T
A
= 25°C
10mA
≤
I
OUT
≤
5A, 1.5V
≤
(V
IN
- V
OUT
), V
IN
≤
7V, P
≤
P
MAX
V
REF
(V
IN
)
I
OUT
= 10mA, 1.5V
≤
(V
IN
- V
OUT
), V
IN
≤
7V
V
REF
(I
OUT
)
V
IN
- V
OUT
= 3V, 10mA
≤
I
OUT
≤
5A
V
OUT
(Pwr)
T
A
= 25°C, 20ms pulse
V
OUT
= 3.3V, f =120Hz, C
OUT
= 100μf Tantalum, V
IN
= 5V
C
ADJ
= 10μF, I
OUT
= 5A
I
ADJ
I
ADJ
10mA
≤
I
OUT
≤
5A, 1.5V
≤
(V
IN
- V
OUT
), V
IN
≤
7V
V
V
REF
= 1%, I
OUT
= 5A
I
OUT(MIN)
V
IN
≤
7V
I
OUT(MAX)
1.4V
≤
(V
IN
- V
OUT
), V
IN
≤
7V
V
OUT
(T)
V
OUT
(t) T
A
= 125°C, 1000 hrs
T
A
= 125°C, 10Hz
≤
f
≤
10kHz
Line Regulation (Note 2)
Load Regulation (Note 2)
Thermal Regulation
Ripple Rejection (Note 3)
Adjust Pin Current
Adjust Pin Current Change
Dropout Voltage
Minimum Load Current
Maximum Output Current (Note 4)
Temperature Stability (Note 3)
Long Term Stability (Note 3)
RMS Output Noise (% of V
OUT
) (Note 3) V
OUT (RMS)
V
V
%
%
%/W
dB
60
55
0.2
0.8
2
7
0.25
100
5
1
10
μA
μA
V
mA
A
%
%
%
5.1
1
0.003
Note 2. Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to
heating effects are covered under the specification for thermal regulation.
Note 3. These parameters, although guaranteed, are not tested in production.
Note 4. I
OUT (MAX)
is measured under the condition that V
OUT
is forced below its nominal value by 100mV.
Parameter
Symbol
Test Conditions
Units
LX8554-33
Typ.
3.3
3.3
1
2
5
0.01
83
4
0.8
7
0.25
0.3
0.003
Min.
3.267
3.235
Max.
3.333
3.365
6
10
15
0.02
Output Voltage (Note 4)
V
OUT
V
IN
= 5V, I
OUT
= 0mA, T
A
= 25°C
4.75V
≤
V
IN
≤
10V, 0mA
≤
I
OUT
≤
5A, T
A
= 25°C, P
≤
P
MAX
4.75V
≤
V
IN
≤
7V
4.75V
≤
V
IN
≤
10V
V
OUT
(I
OUT
)
V
IN
= 5V, 10mA
≤
I
OUT
≤
I
OUT (MAX)
V
OUT
(Pwr)
T
A
= 25°C, 20ms pulse
C
OUT
= 100μF (Tantalum), I
OUT
= 5A
I
Q
0mA
≤
I
OUT
≤
I
OUT (MAX)
, 4.75V
≤
V
IN
≤
10V
V
V
OUT
= 1%, I
OUT
≤
I
OUT (MAX)
, V
IN
- V
OUT
≤
7V
I
OUT (MAX)
V
IN
≤
7V
V
OUT
(T)
V
OUT
(t) T
A
= 125°C, 1000 hours
T
A
= 25°C, 10Hz
≤
f
≤
10kHz
Line Regulation (Note 2)
V
OUT
(V
IN
)
Load Regulation (Note 2)
Thermal Regulation (Note 3)
Ripple Rejection (Note 3)
Quiescent Current
Dropout Voltage
Maximum Output Current
Temperature Stability (Note 3)
Long Term Stability (Note 3)
RMS Output Noise (% of V
OUT
) (Note 3) V
OUT (RMS)
V
V
mV
mV
mV
% / W
dB
mA
V
A
%
%
%
65
10
1
5.1
1
LX8554-33
(3.3V Fixed)
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